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posledela
3 years ago
11

Which of the following is not required for the proper use of molecular beacons?

Biology
1 answer:
arlik [135]3 years ago
7 0

Answer:

b. Detachment of a separate hybridized probe molecule from the template DNA

Explanation:

Molecular beacons are a type of genetic probe that enables the hybridization of oligonucleotides. These molecules have a flourishing component that binds to a nucleotide sequence and allows the identification of this nucleotide sequence in DNA or RNA without the release of radioactivity. For the use of these molecular beacons to be possible, one needs complementarity between the model DNA and the probe sequence,  illumination of the hybridized beacon to detect fluorescence and proximity-based quenching of the fluorophore prior to beacon hybridization.

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Using the terms DNA, trait, code, pattern, gene, describe why each organism is unique
Rom4ik [11]
Each organism is unique because of genetic variation. Each set of genes we inherit from our parents codes for a specific trait. And our DNA is a blueprint for these traits. Not everybody contains the same genes and that is why we are all so beautifully unique.
8 0
3 years ago
True or false: in the sequence aggcct, an available phosphate group would be found at the 5' end of the nucleotide labeled "t."
Oksanka [162]

The answer is false.

an available phosphate group would be found at the 5' end of the nucleotide labeled A. The 5′-end of a DNA contains a phosphate group that is  attached to the 5′ carbon of the ribose ring and that A phosphate group  permits ligation of two nucleotides ( phosphodiester bond).


4 0
4 years ago
How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrus
ad-work [718]

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

8 0
3 years ago
Read 2 more answers
Mendel observed that pairs of alleles were separated or segregated in gametes and that they were rejoined in fertilization. we k
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Homologous chromosomes....meiosis
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4 years ago
See picture:
Sidana [21]
Missense Mutation. A nucleotide was substituted for another- and most importantly- changes the final amino acid.
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